diff --git a/inventory/urls.py b/inventory/urls.py
index 78449e03..a264c5aa 100644
--- a/inventory/urls.py
+++ b/inventory/urls.py
@@ -578,7 +578,7 @@ path(
         name="estimate_detail",
     ),
     path("sales/estimates/create/", views.create_estimate, name="estimate_create"),
-    path("sales/estimates/create/<int:pk>/", views.create_estimate, name="estimate_create_from_opportunity"),
+    path("sales/estimates/create/<slug:slug>/", views.create_estimate, name="estimate_create_from_opportunity"),
     path(
         "sales/estimates/<uuid:pk>/estimate_mark_as/",
         views.estimate_mark_as,